Alec Baldwin has reprised in his role as Donald Trump for the latest episode of Saturday Night Live’s Weekend Update, identifying the US president as the true martyr of the tragic Charlottesville rally.

A 12-year-old singing ventriloquist has been awarded US$1 (A$1.3) million prize and her own Las Vegas show after taking the America's Got Talent crown on the season 12 finale of the NBC reality competition.

Kremlin says it has no dossier on Trump

The Kremlin says it has no compromising material on US President-elect Donald Trump or his defeated Democratic rival Hillary Clinton.

Kremlin spokesman Dmitry Peskov, addressing reporters on a conference call, said the dossier was a hoax which had been dreamt up to further damage US-Russia relations.

Two US officials said on Tuesday evening that the heads of four US intelligence agencies had last week presented Trump with classified documents which included claims that Russian intelligence operatives had compromising information about him.

But the Kremlin said the unsubstantiated dossier had been fabricated and was "total nonsense".